Distributed status calculations in an electricity network with the aid of agents

Abstract

Calculating device and method for carrying out status calculations in an electricity network ( 2 ) with a multiplicity of nodes (K 1 -K 11 ). The method comprises the allocation of a local calculating agent (A 1 -A 11 ) to each of the multiplicity of nodes (K 1 -K 11 ), the allocation of regional calculating agents (R 1 , R 2 ) to regional networks ( 3, 4 ), the reception by the regional calculating agents (R 1 , R 2 ) of the results of the status calculations from the associated local calculating agents (A 1 -A 11 ) and, on the basis thereof, the performance of a status calculation for the associated regional network ( 3, 4 ). The method further comprises the creation of a simplified network representation of the associated regional network ( 3, 4 ) and the reception by a higher-order regional calculating agent (R 3 ) of the results of the status calculations and the simplified network representations of the regional calculating agents (R 1 , R 2 ), and, on the basis of the simplified network representations, calculation of the status of the electricity network ( 2 ).

What is claimed is: 
     
       1. Method for carrying out status calculations in an electricity network with a multiplicity of nodes, wherein a node has an associated status which comprises a complex voltage, an incoming and an outgoing power, wherein the method comprises:
 the allocation of a local calculating agent to each of the multiplicity of nodes, wherein the local calculating agent carries out status calculations exclusively of the associated node; 
 the allocation of regional calculating agents to regional networks, wherein each regional network comprises a part of the multiplicity of nodes and the total of regional networks forms the electricity network with the exception of interregional connections between regional networks; 
 the reception by the regional calculating agents of the results of the status calculations of the associated local calculating agents, and, on the basis thereof, the performance of a status calculation for the associated regional network, and the creation of a simplified network representation of the associated regional network; and 
 the reception by a higher-order regional calculating agent of the results of the status calculations and the simplified network representations of the regional calculating agents, and, on the basis of the simplified network representations, calculation of the status of the electricity network. 
 
     
     
       2. Method according to  claim 1 , further comprising
 the sending of the results of the status calculation of the electricity network by the higher-order regional calculating agent to the regional calculating agents; 
 the carrying out once more of status calculations by the regional calculating agents; and 
 the sending by the regional calculating agent of the results of the status calculation to the local agents. 
 
     
     
       3. Method according to  claim 1 , further comprising
 the iterative performance of status calculations by the local calculating agents, the regional calculating agents, and the higher-order regional calculating agent. 
 
     
     
       4. Method according to  claim 1 , wherein status calculations are carried out in parallel by two or more of the local calculating agents, regional calculating agents and the higher-order regional calculating agent. 
     
     
       5. Method according to  claim 1 , wherein one or more of the local calculating agents, regional calculating agents and the higher-order regional calculating agent are implemented as an autonomous unit. 
     
     
       6. Method according to  claim 1 , further comprising
 the simultaneous sending of the calculated status by the regional calculating agent to the higher-order regional calculating agent and to the associated local agents. 
 
     
     
       7. Method according to  claim 1 , wherein the higher-order regional calculating agent periodically carries out the status calculation. 
     
     
       8. Method according to  claim 1 , wherein the higher-order regional calculating agent carries out the status calculation after receiving results from each of the regional calculating agents. 
     
     
       9. A non-transitory computer readable medium having a computer program embodied thereon, the computer program including instructions for causing a programmable processor to perform
 the allocation of a local calculating agent to each of the multiplicity of nodes, wherein the local calculating agent carries out status calculations exclusively of the associated node; 
 the allocation of regional calculating agents to regional networks, wherein each regional network comprises a part of the multiplicity of nodes and the total of regional networks forms the electricity network with the exception of interregional connections between regional networks; 
 the reception by the regional calculating agents of the results of the status calculations of the associated local calculating agents, and, on the basis thereof, the performance of a status calculation for the associated regional network, and the creation of a simplified network representation of the associated regional network; and 
 the reception by a higher-order regional calculating agent of the results of the status calculations and the simplified network representations of the regional calculating agents, and, on the basis of the simplified network representations, calculation of the status of the electricity network. 
 
     
     
       10. Calculating device for carrying out status calculations on an electricity network, wherein the calculating device comprises one or more computer systems, and the one or more computer systems are designed to implement one or more of a local calculating agent, regional calculating agents and a higher-order regional calculating agent, as a result of which the calculating device obtains the functionality to perform
 the allocation of a local calculating agent to each of the multiplicity of nodes, wherein the local calculating agent carries out status calculations exclusively of the associated node; 
 the allocation of regional calculating agents to regional networks, wherein each regional network comprises a part of the multiplicity of nodes and the total of regional networks forms the electricity network with the exception of interregional connections between regional networks; 
 the reception by the regional calculating agents of the results of the status calculations of the associated local calculating agents, and, on the basis thereof, the performance of a status calculation for the associated regional network, and the creation of a simplified network representation of the associated regional network; and 
 the reception by a higher-order regional calculating agent of the results of the status calculations and the simplified network representations of the regional calculating agents, and, on the basis of the simplified network representations, calculation of the status of the electricity network. 
 
     
     
       11. Calculating device according to  claim 10 , further provided with an interface to receive measurement data from sensors. 
     
     
       12. Calculating device according to  claim 10 , wherein the calculating device is a part of a node in the electricity network.